Back to EveryPatent.com
United States Patent | 5,544,834 |
Esguerra ,   et al. | August 13, 1996 |
An improved video tape cassette is molded from a plastic having good elastic memory in primarily two pieces, namely a housing piece and a dust cover piece. The housing is provided with an inwardly movable latching flap which holds the dust cover in latched position, and which is backed up by an integrally molded spring. A second spring is integrally molded to the dust cover to bias it in a closed position. Rotatable guide sleeves are provided to reduce tape damage, and locking teeth keep the spools from moving when the cassette is not in a video player/recorder machine.
Inventors: | Esguerra; Alfonso (Miami, FL); Esguerra; George (Miami, FL) |
Assignee: | WTI International Corporation (Miami, FL) |
Appl. No.: | 286824 |
Filed: | August 5, 1994 |
Current U.S. Class: | 242/347.1; 242/343.2; 242/345.2 |
Intern'l Class: | G11B 023/87; 613; 614 |
Field of Search: | 242/341,343,343.2,345.2,346,346.2,347,347.1,347.2,606,607,608,608.2,608.6,611.2 360/132 |
793672 | Jul., 1905 | Kuckoff et al. | |
3195828 | Jul., 1963 | Kuckoff et al. | |
3489371 | Apr., 1968 | Smith. | |
3495787 | Feb., 1970 | Wallace | 242/346. |
3622099 | Nov., 1971 | Bishop. | |
3645462 | Feb., 1972 | Ito et al. | |
3712559 | Jan., 1973 | Schwartz. | |
3861621 | Jan., 1975 | Takeichi et al. | |
3873046 | Mar., 1975 | Thevenaz. | |
3910692 | Oct., 1975 | Scibilia. | |
3971071 | Jul., 1976 | Urayama. | |
4226381 | Oct., 1980 | Katata | 242/608. |
4227622 | Oct., 1980 | Okamura. | |
4235395 | Nov., 1980 | Wardenaar et al. | |
4249710 | Feb., 1981 | Dobbs et al. | 242/347. |
4306690 | Dec., 1981 | Izaki et al. | |
4341365 | Jul., 1982 | Oishi. | |
4367963 | Jan., 1983 | Daughters. | |
4376519 | Mar., 1983 | Ishida et al. | |
4382565 | May., 1983 | Shiba. | |
4428481 | Jan., 1984 | Basili. | |
4473194 | Sep., 1984 | Kashimura | 242/608. |
4501396 | Feb., 1985 | Tomsyck. | |
4515330 | May., 1985 | Wulfing et al. | 242/346. |
4520969 | Jun., 1985 | Wulfing et al. | 242/608. |
4559574 | Dec., 1985 | Umeda | 242/345. |
4561609 | Dec., 1985 | Collins et al. | |
4620255 | Oct., 1986 | Cook et al. | 242/346. |
4648563 | Mar., 1987 | Tollefson | 242/346. |
4707757 | Nov., 1987 | Shiba et al. | |
4715558 | Dec., 1987 | Fair et al. | 242/345. |
4754358 | Jun., 1988 | Oishi. | |
4932604 | Jun., 1990 | Maehara et al. | 242/614. |
4951167 | Aug., 1990 | Hiramoto et al. | 242/347. |
4969612 | Nov., 1990 | Thomas | 242/345. |
5092536 | Mar., 1992 | Gelardi et al. | 242/347. |
5114092 | May., 1992 | Gelardi et al. | 242/345. |
5201476 | Apr., 1993 | Gelardi et al. | 242/346. |
5240201 | Aug., 1993 | Gelardi et al. | 242/343. |
5308015 | May., 1994 | Gelardi et al. | 242/347. |
5377928 | Jan., 1995 | Gelardi et al. | 242/346. |
Foreign Patent Documents | |||
2845238 | Apr., 1980 | DE. | |
2104872 | Mar., 1983 | GB | 242/345. |
WO88/08196 | Oct., 1988 | WO. | |
WO91/07752 | May., 1991 | WO. | |
WO91/09401 | Jun., 1991 | WO | 242/347. |